<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
    <h1 style="font-weight: bolder">This is a paragraph</h1>
    <h1 style="text-transform: uppercase;font-weight: normal"><span style="font-size: larger;font-weight: bolder">T</span>his is a paragraph</h1>
</div>
</body>
</html>